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IEC 61828:2020 - provides definitions for the transmitted field characteristics of focusing and nonfocusing transducers for applications in medical ultrasound; - relates these definitions to theoretical descriptions, design, and measurement of the transmitted fields of focusing transducers; - gives measurement methods for obtaining defined field characteristics of focusing and nonfocusing…

1 Scope 1.1 Introduction 1.1.1 Fire fighters (FF) performing operations involving buildings with attached or integrated Photovoltaic (PV) arrays may be exposed to electrical hazards from damaged PV equipment. These requirements provide a means for evaluation of PV Hazard Control components, equipment and systems that provide a reduced level of shock hazard from energized PV system equipment…

1 Scope 1.1 This standard applies to suit systems to be worn by helicopter passengers during transportation over water where thermal protection may be required. 1.2 The primary function of a suit system meeting this standard is to provide the helicopter passenger protection from the effects of cold water during the initial hours of immersion. 1.3 Helicopter passenger transportation suit…

This document describes a method for the sampling and measurement of mercury of both vapour and solid phases on stationary source flue gas streams. Mercury generally exists as elemental (Hg0) and oxidized (Hg2+) forms, both in the vapour and solid phases in flue gases. The vapour-phase (gaseous) mercury is captured either isokinetically or non-isokinetically with a gold amalgamation trap after…

This document specifies a method of testing the laser-induced ignition and damage of medical beam delivery systems to allow checking of suitable products according to the classification system. NOTE 1 Take care when interpreting these results, since the direct applicability of the results of this test method to the clinical situation has not been fully established. NOTE 2 Users of products tested…

1.1 This document specifies the physical property requirements and test methods used to verify compliance of those material properties for low pressure spray applied rigid two-component polyurethane foam for use as thermal insulation. This document applies to materials for building applications whether applied on a building site or in a prefabrication (manufacturing) process. 1.2 The spray…

1.1 This Standard provides air barrier assembly performance requirements and test methods to determine the performance levels for an air barrier assembly used in applications for both low-rise and high-rise buildings. 1.2 The test methods described in this Standard involve measuring the air leakage rate of a representative test specimen of an air barrier assembly before and after exposure to…

This document outlines the equipment and operator qualification needed for laser-arc hybrid welding, and recommends butt, fillet and flange joint preparations and consumables suitable for use with this process. It also gives an overview of the steps to take during equipment set-up, procedure specification, workpiece set-up immediately prior to welding, and after welding once inspecting and…

IEC/IEEE 60980-344:2020 describes methods for establishing seismic qualification procedures that will yield quantitative data to demonstrate that the equipment can meet its performance requirements. This document is applicable to electrical, mechanical, instrumentation and control equipment/components that are used in nuclear facilities. This document provides methods and documentation…

IEC/IEEE 60980-344:2020 describes methods for establishing seismic qualification procedures that will yield quantitative data to demonstrate that the equipment can meet its performance requirements. This document is applicable to electrical, mechanical, instrumentation and control equipment/components that are used in nuclear facilities. This document provides methods and documentation…